Difficult problem -> Developing new branches of mathematics to solve said problem -> solving problem, or failing to do so, it doesn't matter -> aforementioned new branches of mathematics are used to solve practical, real-world problems that benefit industry and economy.
The point of solving the problem is not the prize. The point of solving the problem is not even solving the problem. It is developing new methods and deepening understanding to drive useful applications.
Difficult problem -> Developing new branches of mathematics to solve said problem -> solving problem, or failing to do so, it doesn't matter -> aforementioned new branches of mathematics are used to solve practical, real-world problems that benefit industry and economy.
The point of solving the problem is not the prize. The point of solving the problem is not even solving the problem. It is developing new methods and deepening understanding to drive useful applications.